115 citations · 166 across the 10 of their papers we have counts for
10 papers
Emergence of the magnetic octupole Rashba-Edelstein effect from spin-orbit entanglement
Hojun Lee, Seungyun Han
Magnetic multipoles have attracted growing interest as order parameters and dynamical degrees of freedom in unconventional magnets, yet it remains unclear how broadly they can emer…
Intra-atomic magnetic octupoles and their coupling to cluster magnetic octupoles in Chiral antiferromagnets MnSn
Dohoon Park, Seungyun Han, Hyun-Woo Lee
We demonstrate that MnSn hosts finite intra-atomic magnetic octupoles (AMOs) in addition to the well-established cluster magnetic octupole (CMO) . In c…
Deterministic Néel vector switching of altermagnets via magnetic octupole torque
Seungyun Han, Insu Baek, Kyoung-Whan Kim +2
Altermagnets have recently emerged as promising materials for next-generation spintronic devices. For their device applications, realizing a single-domain configuration is essentia…
Magnetic octupole Hall effect in heavy transition metals
Insu Baek, Seungyun Han, Hyun-Woo Lee
d-wave altermagnets have the magnetic octupole as their primary order parameter. A recent study [Han et al. arXiv 2409.14423 (2024)] demonstrated that magnetic octupole current can…
Harnessing magnetic octupole Hall effect to induce torque in altermagnets
Seungyun Han, Daegeun Jo, Insu Baek +2
d-wave altermagnets have magnetic octupoles as their order parameters [Phys. Rev. X 14, 011019 (2024)]. We theoretically show that magnetic octupoles injected from outside generate…
Orbital Pumping Incorporating Both Orbital Angular Momentum and Position
Seungyun Han, Hye-Won Ko, Jung Hyun Oh +3
We develop a theory of adiabatic orbital pumping, highlighting qualitative differences from spin pumping. An oscillating magnetic field pumps not only orbital angular momentum curr…
Nonlinear Orbital and Spin Edelstein Effect in Centrosymmetric Metals
Insu Baek, Seungyun Han, Suik Cheon +1
Nonlinear spintronics combines nonlinear dynamics with spintronics, opening up new possibilities beyond linear responses. A recent theoretical work [Xiao et al., Phys. Rev. Lett. 1…
Microscopic study of orbital textures
Seungyun Han, Hyun-Woo Lee, Kyoung-Whan Kim
Many interesting spin and orbital transport phenomena originate from orbital textures, referring to -dependent orbital states. Most of previous works are based on symmetry…
Orbital Dynamics in Centrosymmetric Systems
Seungyun Han, Hyun-Woo Lee, Kyoung-Whan Kim
Orbital dynamics in time-reversal-symmetric centrosymmetric systems is examined theoretically. Contrary to common belief, we demonstrate that many aspects of orbital dynamics are q…
Gigantic current control of coercive field and magnetic memory based on nm-thin ferromagnetic van der Waals Fe3GeTe2
Kaixuan Zhang, Seungyun Han, Youjin Lee +11
Controlling magnetic states by a small current is essential for the next-generation of energy-efficient spintronic devices. However, it invariably requires considerable energy to c…